(function ($) {
    /*
    jquery.dropSlideMenu.js v1.0
    Last updated: 24 July 2009

    Created by Damien du Toit
    http://coda.co.za/blog/2009/07/24/dropslidemenu

    Licensed under a Creative Commons Attribution-Non-Commercial 3.0 Unported License
    http://creativecommons.org/licenses/by-nc/3.0/
    */

    $.fn.dropSlideMenu = function (options) {

        $.fn.dropSlideMenu.defaults = {
            indicators: true, // adds a div to the list items for attaching indicators (arrows)
            clickstream: true, // highlights the clickstream in a menu by comparing the links to the current URL path
            openEasing: "easeOutQuad", // open animation effect
            closeEasing: "easeInQuad", // close animation effect
            duration: 600, // speed of drop down animation (in milliseconds)
            delay: 800, // delay before the drop down closes (in milliseconds)
            hideSelects: true // hide all select elements on the page when the menu is active (IE6 only)
        };

        var o = $.extend({}, $.fn.dropSlideMenu.defaults, options);

        return this.each(function () {
            window.container = $(this).children("ul:first");
            window.lists = container.find("ul");
            window.listItems = lists.parent();
            window.timer = null;
            window.count = 1;

            // add class to container
            container.addClass("ds");

            // inject float clearer
            var clear = "<div class=\"dsClear\">&nbsp;</div>";
            container.append(clear);

            lists.each(function () {
                // assign unique id, hide list
                $(this).attr("id", "dsList-" + count).css({ display: "none", visibility: "visible" });

                count++;
            });

            count = 1;

            listItems.each(function () {
                var listItem = $(this);
                var list = listItem.children("ul:first");
                var link = listItem.children("a:first");

                // add clickstream if link href found in URL path
                if (o.clickstream) {
                    var links = listItem.find("a");

                    links.each(function () {
                        //if ($(this).attr("href").indexOf("model") > -1)
                        //    alert(window.location.pathname + " = " + $(this).attr("href"));

                        if (window.location.pathname.indexOf($(this).attr("href")) != -1) {
                            $(this).parent().addClass("clickstream");
                        }
                    });
                }

                // wrap indicator markup
                if (o.indicators) {
                    link.wrap("<div class=\"indicator\"></div>");
                }

                // assign unique id
                listItem.attr("id", "dsListItem-" + count);

                $.event.special.hover.delay = 80;

                listItem.hover(function () {
                    if ($(this).hasClass("open")) {
                        if (timer) {
                            // reset timer
                            window.clearTimeout(timer);
                            timer = null;
                        }
                    }
                    else {
                        // hide all menus
                        if ($("li#" + this.id, lists).length == 0) {
                            lists.hide();
                        }

                        // reset all list item styles
                        listItems.removeClass("open").removeClass("active");

                        // reset timer
                        window.clearTimeout(timer);
                        timer = null;

                        // open menu
                        openList($(this));
                    }
                },
				function () {
				    timer = setTimeout(function () {
				        // close menu
				        closeList(list.parent());
				    }, o.delay);
				});

                function openList(li) {
                    // hide select elements in IE6
                    if (o.hideSelects && $.browser.msie && parseInt($.browser.version) < 7) {
                        $("select").css("visibility", "hidden");
                    }

                    // add style
                    li.addClass("open");

                    if (li.find("a.top_parent").length == 0) {
                        list.css("left", li.outerWidth());
                        list.css("top", li.position().top - (li.outerHeight() * 2));
                    }

                    // open menu
                    list.show("slide", { duration: o.duration, direction: "up", easing: o.openEasing }, function () {
                    });
                }

                function closeList(li) {
                    // reset timer
                    timer = null;

                    // close menu
                    list.hide("slide", { duration: o.duration, direction: "up", easing: o.closeEasing }, function () {
                        // remove style
                        li.removeClass("open");

                        // show select elements in IE6
                        if (o.hideSelects && $.browser.msie && parseInt($.browser.version) < 7) {
                            $("select").css("visibility", "visible");
                        }
                    });
                }

                count++;
            });

            // Internet Explorer fix
            if ($.browser.msie) {
                container.find("li ul li a").css({ zoom: 1, verticalAlign: "top" });
            }

            // behaviour for links with empty href's
            $("a[href$='#']", container).css({ cursor: "default" }).click(function () { return false; });
        });
    };
})(jQuery);